Wood ornamentation



(No Model.) 3 Sheets-Sheet 1.

J. P. JAMISON.

WOOD ORNAMENTATION.

No. 335,589. Patented Feb. 9, 1886.

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PETERS, Phnlo-Lithogmphur, wminmn. n. c.

(No Model.) 3 Sheets-Sheet 2. J. P. JAMIS'ON.

WOOD ORNAMENTATION.

Patented Feb. 9, 1886.

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J. P. JAMISON.

WOOD ORNAMENTATION. No. 335,589. I Patented Feb. 9, 1886.

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UNITED STATES PATENT OFFICE.

JOHN P. JAMISON, OF OAMBRIDGEPORT, MASSACHUSETTS.

WOOD ORNA MENTATION.

SPECIFECATION forming part of Letters Patent No. 335,589, dated February9,1886.

Application filed August 39. 1885.

To all whom, it may concern.-

Be it known that I, JOHN P. JAMISON, of Uambridgeport, in the county ofMiddlcsex and State of Massachusetts, have invented certain new anduseful Improvements in Machines for Ornamenting \Vood, of which thefollowing, taken in connection with the accompanying drawings, is aspecification.

My invention relates to machines for ornamenting wood by pressing intothe surface thereof designs in imitation of carving, and is animprovement upon the invention described in Letters Patent No. 299,984,granted to me June 10, 188i; and it consists in certain novelconstructions,arraugementsand combinations of parts, which will bereadily understood by reference to the description of the drawings, andto the claims to be hereinafter given.

Of the drawings, Figure 1 is a front elevation of so much of a machineembodying my invention as is necessary to illustrate said in vention.Fig. 2is a vertical transverse section of the same, the cutting-planebeing on line as x on Fig. l; and Fig. 3 isa partial sectional plan ofthe same, the cuttingplane being on line y g on Figs. 1 and 2.

In the drawings, A A are the side frames of the machine, connectedtogether and maintained at the proper distance apart by thegirt B, andsuitable tie-rods or girts near the lower ends of said frames, but notshown inthe drawings.

O and O are a pair of bed-rolls mounted in suitable bearings in theframes A A, and each having secured upon one end of its shaft or journala spur gear wheel, a, which meshes into an intermediate gear-wheel, b,as shown in Fig. 1. The opposite end of the shaft of the bed-roll Chasmounted thereon the large spur-gear wheel 0, with which the pinion d,mounted upon the end of the driving shaft D, engages, whereby when theshaft D is revolved by means of the pulley E, secured to the other endof said shaft, the rolls 0 and O are both revolved in the samedirection, their upper sides moving toward the rear of the machine, asindicated by the arrows in Fig. 2. The upper portions of the frames A Ahave formed'therein the large slots or openings F, in which are fittedthe sliding blocks G G, arranged to be adjusted vertically therein bymeans of the screws e e, which are se- ScriJl No. 175,616. (No model.)

cured to the blocks G and G by a rigid connection, as indicated indotted lines in Fig. 2, so that they cannot revolve, but may be moved upand down by means of the gear-wheels H, H, and H" and the shaft I andhand-wheel J, the gear-wheels H and H having their holes threaded to fitthe screws c and c and act as nuts thereon to raise and lower saidscrews and the blocks G and G as said gears are re volved, said gears Hand H being mounted in slotsg in the frames A A, with their hubsabutting against the upper and lower sides of the slots, as shown inFig. 2. This arrangement of devices for raising and lowering the blocksG and G is substantially the same as shown and described in mybefore-cited Letters Patent; but the blocks or boxes in said priorpatent had mounted in bearings formed therein two revolving shafts,which carried the cylindrical dies for embossing the wood.

Owing to the size of shaft required to give the required stiffness toresist the strain of giving the impression, especially in hard woods,

the dies could not be made less than about three inches in diameter, orniueinchesin circumference. This has been found to be very objectionablein doing some kinds of work, on account of the great cost of the diesas,for instance, when it was desired to emboss upon a strip of wood acontinuous band of ornanientation made of a series of repetitions of asingle figure or design, it often happened that the figure or design hadto be many times repeated upon the periphery of the die in order toextend around its entire circumference, for the simple reason that itwas impracticable to make the dies smaller in diameter, on account ofthe necessarily large size of the shafts upon which said dies weremounted. To obviate in a great measure this objection and make itpracticable to use dies as small as one inch in diameter, therebygreatly reducing the labor of the engraver in making the dies, I set theheavy shafts P and P in the blocks G and G in such a manner that theycannot revolve therein,and mount thereon one or more pairs of pendentarms or yokes, J J, in such a manner that they may be adjusted in thedirection of the length of said shafts, but cannot move about the same,said shafts having formed therein a longitudinal slot or groove, h, inwhich and a corresponding key way in the arm or yoke J is fitted a gibor key, '5, which is pressed hard against the bottom of the groove h bythe set-screwy, by slackening which the arm or yoke J may be moved toany desired position on its shaft, and may then be secured in said newposition by tightening the gib or key again by turning the setsercw.

In the lower end of each of the arms or yokes J is formed a bearing forthe small spindle la, the lower side of which is only about one-eighthof an inch above the extremelower part of the arm or yoke, said spindlebeing made fast in at least one of the arms J by means of the set-screwI, so that it'eannot turn in its bearings. This spindle 7c is supportedin two of the arms or yokes J, which are adjusted to a greater or lessdistance from each other, according to the axial length of the die to beused, which is mounted upon and revolves about said spindle between saidarms, as shown in Fig. 1.

By virtue of the fact that the die-spindle has its bearings in closeproximity to the ends of the die a much smaller spindle can be used thanif the bearings were at a greater distance from each other, and by beingenabled to use a smaller spindle, and to make the downward projectionsof the arms or yokes below said spindle very slight, I am enabled to usevery much smaller dies than I otherwise could, and

thus render it possible in a great many if not in all cases to makethecircumference of the die correspond with the length of the figure ordesign.

In the drawings I have shown two pairs of arms or yokes upon the rearshaft. P, and only one pair upon the front shaft, P; but it is obviousthat two or more pairs may be mounted upon both, or only one pair may beplaced upon each shaft. A pair of arms or yokes are required to supporta single die, and two dies may be used-one upon each shaft-in the samemanner as described in my former patent; or one die may be suspendedfrom the front shaft and two from the rear shaft, as shown in thedrawings, where L is an embossing-die for forming along the center of astrip of wood an ornamental belt in imitation of carving, L is asmoothly-grooved roll suspended from the rear shaft, P, for the purposeof embossing a double bead along one edge of the strip of wood, and L isanother smooth roll for forming a bevel or chamfer along the other edgeof said strip, said roll also being suspended from the rear shaft, P.Two gages, N N, are arranged above and extend transversely across thebed rolls 0 and 0 parallel with each other, and are adjustably securedto the grooved bars 0 0 by means of the set-screws m, the inner ends ofwhich enter the groove n in said bars 0, to prevent said gages N frombeing lifted from the bars 0, said gages being guided upon the bars 0 Oby transverse grooves formed in the under side of their expanded endportions,which grooves fit nicely to the bars 0, which are planed to fitthe same, said bars 0 0 being secured at each end-to one of the frames AA in positions parallel to each other, as shown'in Fig. 3. What I claimas new, and desire tosecure by Letters Patent of the United States, is-

1. 'In a machine for ornamenting wood in imitation of carving, thecombination of a bedroll, mechanism for imparting to said roll a rotarymotion, a vertically-movable but nonrevolving shaft or bar extendingacross the machine parallel with said bed-roll, a pair of pendent armsmounted upon said non-revoluble shaft or bar, and a cylindrical diemounted upon a spindle set in bearings in the lower ends of said arms,and having its lower side below the extreme lower ends of said arms,substantially as described.

2. The combination of the non-revolving shaft 1?, provided with thesp1ine-groove h, a pair of pendent arms, J J, the gibs or keys 1 t, theset-screws jj, the non-revolving spindle k, and a cylindrical diemounted upon and revoluble about said spindle, substantially asdescribed.

3. In a machine for ornamenting wood, a pair of bed-rolls, a pair ofnon-revolving shafts or bars, a pair of pendent arms adjustably mountedupon each of said shafts or bars, and a cylindrical die or pressureshaping roll mounted between and supported by bearings in the lower endsof each pair of pendent arms, substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence oftwo subscribing witnesses, on this 15th day of August, A. D.1885.

JOHN P. Jamison,

Witnesses:

WALTER E. LOMBARD, FRANK E. BRAY.

